M1089 MATERIAL HANDLING CRANE (MHC) BOOM DOWN DOES NOT OPERATE FROM REMOTE STATION (cont)

TM 9-2320-366-20-2

e125. M1089 MATERIAL HANDLING CRANE (MHC) BOOM DOWN DOES NOT OPERATE FROM REMOTE

e125.

STATION (CONT)

KNOWN INFO

TEST OPTIONS

Other crane functions from

Continuity Test or

Is continuity present

remote station OK.

STE/ICE Test #91

REASON FOR QUESTION

from boom down

Remote control box OK.

If continuity is not present,

solenoid cable connector

BOOM UP/DOWN

boom down solenoid cable

pin 2 to ground and from

controller OK.

POSSIBLE PROBLEMS

is faulty. If continuity is

pin 1 to terminal board

Faulty boom down solenoid

present, boom down

lower position 14?

cable.

solenoid is faulty.

Faulty boom down solenoid.

Replace boom down solenoid

cable (para 7-106).

YES

Notify DS Maintenance.

2-1344